VCNL4100 Datasheet, PDF (11/17 Pages) Vishay Siliconix – High Sensitivity Long Distance Proximity and Ambient Light Sensor with I2C Interface

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VCNL4100
Vishay Semiconductors
TABLE 13 - REGISTER: PS_THDH DESCRIPTION
PS_THDH
COMMAND CODE: 06H_H (06H DATA BYTE HIGH)
Register
Bit
Description
PS_THDH
7 : 0 00H to FFH, PS high interrupt threshold setting
TABLE 14 - REGISTER: RESERVE COMMAND DESCRIPTION
Reserved
COMMAND CODE: 07H_L (07H DATA BYTE LOW)
Register
Bit
Description
Reserved
7 : 0 Default = 00H
TABLE 15 - REGISTER: RESERVE COMMAND DESCRIPTION
Reserved
COMMAND CODE: 07H_H (07H DATA BYTE HIGH)
Register
Bit
Description
Reserved
7 : 0 Default = 00H
TABLE 16 - READ OUT REGISTER DESCRIPTION
REGISTER
COMMAND CODE
BIT
DESCRIPTION
PS_Data
08H_L (08H data byte low)
7 : 0 00H to FFH, PS output data
Reserved
08H_H (08H data byte high)
7 : 0 Default = 00H
ALS_Data_L
09H_L (09H data byte low)
7 : 0 00H to FFH, ALS LSB output data
ALS_Data_M
09H_H (09H data byte high)
7 : 0 00H to FFH, ALS MSB output data
Reserved
0AH_L (0AH data byte low)
7:0
Reserved
0AH_H (0AH data byte high)
7:0
Reserved
0BH_L (0BH data byte low)
7 : 0 Default = 00H
INT_Flag
0BH_H (0BH data byte high)
7 PS_SPF_LEAVE, PS leaving protection mode
6 PS_SPF_ENTER, PS entering protection mode
5 ALS_IF_L, ALS crossing low THD INT trigger event
4 ALS_IF_H, ALS crossing high THD INT trigger event
3 Default = 0, reserved
2 Default = 0, reserved
1 PS_IF_CLOSE, PS rise above PS_THDH INT trigger event
0 PS_IF_AWAY, PS drop below PS_THDL INT trigger event

Adjustable Sampling Time
VCNL4100’s embedded LED driver drives the external IRED with the “LED CATHODE” pin by a pulsed duty cycle. The
IRED on / off duty ratio can be programmable by I²C command at register: PS_Duty is related to the current consumption and
PS response time. The higher the duty ratio selected, the faster response time achieved with higher power consumption.
Rev. 1.2, 30-Aug-16
11
Document Number: 84319
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